void MediaView::loadPhotosBack() {
if (_loadRequest || _index < 0) return;
if (_history && _history->_photosOverviewCount != 0) {
MsgId minId = 0;
for (History::MediaOverviewIds::const_iterator i = _history->_photosOverviewIds.cbegin(), e = _history->_photosOverviewIds.cend(); i != e; ++i) {
if (*i > 0) {
minId = *i;
break;
}
}
int32 limit = (_index < MediaOverviewStartPerPage && _history->_photosOverview.size() > MediaOverviewStartPerPage) ? SearchPerPage : MediaOverviewStartPerPage;
_loadRequest = MTP::send(MTPmessages_Search(_history->peer->input, MTPstring(), MTP_inputMessagesFilterPhotos(), MTP_int(0), MTP_int(0), MTP_int(0), MTP_int(minId), MTP_int(limit)), rpcDone(&MediaView::photosLoaded, _history));
} else if (_user && _user->photosCount != 0) {
int32 limit = (_index < MediaOverviewStartPerPage && _user->photos.size() > MediaOverviewStartPerPage) ? SearchPerPage : MediaOverviewStartPerPage;
_loadRequest = MTP::send(MTPphotos_GetUserPhotos(_user->inputUser, MTP_int(_user->photos.size()), MTP_int(0), MTP_int(limit)), rpcDone(&MediaView::userPhotosLoaded, _user));
}
}
MTPmessages_Search PrepareSearchRequest(
not_null<PeerData*> peer,
Storage::SharedMediaType type,
const QString &query,
MsgId messageId,
SparseIdsLoadDirection direction) {
const auto filter = [&] {
using Type = Storage::SharedMediaType;
switch (type) {
case Type::Photo:
return MTP_inputMessagesFilterPhotos();
case Type::Video:
return MTP_inputMessagesFilterVideo();
case Type::PhotoVideo:
return MTP_inputMessagesFilterPhotoVideo();
case Type::MusicFile:
return MTP_inputMessagesFilterMusic();
case Type::File:
return MTP_inputMessagesFilterDocument();
case Type::VoiceFile:
return MTP_inputMessagesFilterVoice();
case Type::RoundVoiceFile:
return MTP_inputMessagesFilterRoundVoice();
case Type::RoundFile:
return MTP_inputMessagesFilterRoundVideo();
case Type::GIF:
return MTP_inputMessagesFilterGif();
case Type::Link:
return MTP_inputMessagesFilterUrl();
case Type::ChatPhoto:
return MTP_inputMessagesFilterChatPhotos();
}
return MTP_inputMessagesFilterEmpty();
}();
const auto minId = 0;
const auto maxId = 0;
const auto limit = messageId ? kSharedMediaLimit : 0;
const auto offsetId = [&] {
switch (direction) {
case SparseIdsLoadDirection::Before:
case SparseIdsLoadDirection::Around: return messageId;
case SparseIdsLoadDirection::After: return messageId + 1;
}
Unexpected("Direction in PrepareSearchRequest");
}();
const auto addOffset = [&] {
switch (direction) {
case SparseIdsLoadDirection::Before: return 0;
case SparseIdsLoadDirection::Around: return -limit / 2;
case SparseIdsLoadDirection::After: return -limit;
}
Unexpected("Direction in PrepareSearchRequest");
}();
return MTPmessages_Search(
MTP_flags(0),
peer->input,
MTP_string(query),
MTP_inputUserEmpty(),
filter,
MTP_int(0),
MTP_int(0),
MTP_int(offsetId),
MTP_int(addOffset),
MTP_int(limit),
MTP_int(maxId),
MTP_int(minId));
}
